package com.kaishengit.util.web;

import java.io.IOException;

import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class EncodeFilter extends AbstractFilter{
	
	private String charset="UTF-8";

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		request.setCharacterEncoding(charset);
		response.setCharacterEncoding(charset);
		chain.doFilter(request, response);
	}

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		
		String encode = filterConfig.getInitParameter("encode");
		if(encode != null && !"".equals(encode)){
			charset = encode;
		}
		
	}

}
